PT - JOURNAL ARTICLE AU - Arthur L Caplan AU - Jerrold L Abraham TI - Ethical considerations for protecting the options of subjects in primary epidemic vaccine trials AID - 10.1136/medethics-2020-106851 DP - 2021 May 01 TA - Journal of Medical Ethics PG - 360--360 VI - 47 IP - 5 4099 - http://jme.bmj.com/content/47/5/360.short 4100 - http://jme.bmj.com/content/47/5/360.full SO - J Med Ethics2021 May 01; 47